Block Diagrams For Usb Host Port 2 (Differential Or Single-Ended) - Intel PXA27 Series Design Manual

20.3.2 Block Diagrams for USB Host Port 2 (Differential or Single-
Ended)
The Host Controller Port 2 is used with a single-ended connection or a differential connection.
Host Controller 2 must be used either in a single-ended connection or a differential connection, but
not in both connections.
See the block diagram in
Refer to Chapter 12, "'USB Client Controller,"
differential connections.
Figure 20-2. PXA27x Processor Host 2 Single-Ended Connection to External Transceiver
1
U SB H ost
2
C ontroller
3
Transm it enable
USB Device
C ontroller
D +/D -
U P2O C R[EXSP]
Transm it enable
U P2O CR [SE0S]
®
Intel PXA27x Processor Family Design Guide
Figure 20-2
U SB_P2_4
U SB_P2_6
U SB_P2_7
U SB_P2_2
USB_P2_1
USB_P2_5
USB_P2_3
PXA27x Processor
Universal Serial Bus Host Interface
for USB Host Port 2 single-ended connection.
for more information on single-ended or
VMO
VPO
SPEED
OE_n
RCV
VP
VM
D+
External USB
Transceiver
II:20-3